| Emperor (n.) The sovereign or supreme monarch of an empire; -- a title of dignity superior to that of king; as, the emperor of Germany or of Austria; the emperor or Czar of Russia. Thesaurus Entries anointed king, chief, chieftain, crowned head, dynast, grand duke, high chief, imperator, king, king-emperor, kinglet, lord paramount, majesty, monarch, overlord, paramount, petty king, potentate, prince, prince consort, royal, royal personage, royalty, ruler, sovereign, suzerain, tetrarch |